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Finding the Fourth Proportional to 483,526.57, 667,239.51 and 289,837.36

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Solution

The fourth proportional to 483,526.57, 667,239.51 and 289,837.36 is: 399,959.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,526.57 : 667,239.51 = 289,837.36 : x
  2. Step 2: Convert to fraction form
    483,526.57/667,239.51 = 289,837.36/x
  3. Step 3: Cross multiply
    483,526.57x = 667,239.51 × 289,837.36
  4. Step 4: Simplify right side
    483,526.57x = 193,390,940,722.92
  5. Step 5: Solve for x
    x = 193,390,940,722.92/483,526.57
  6. Step 6: Final answer
    x = 399,959.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.